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2 automatic calibration (autocal), Automatic calibration (autocal) – Xylem Lab 850, up to serial number 09470314 User Manual

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Lab 850

Operation

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01/2006

4.4.2

Automatic calibration (AutoCal)

For this procedure, use two or three buffer solutions of the selected
buffer set in any order.

Note
The steps 2, 6 and 10 are not necessary if you use a temperature
sensor.

1

Start the calibration with .
The number of the specified buffer set is displayed (SET 1 ...
16).
The first buffer (BUFFER 1) of the buffer set (SET_x) is
requested.

2

If necessary, set the temperature of the buffer solution with
<

▲><▼>.

3

Immerse the pH electrode in the first buffer solution.

4

Start the measurement with .
The SC display indicator flashes.
Depending on the setting, the display shows the nominal pH
value for the recognized buffer or the electrode voltage (mV).
As soon as a stable value is recognized, the next buffer
(BUFFER 2) is requested.

8

5

2

1

1

°C

TP

AutoCal

pH

SET

BUFFER